The point of raising a tariff on a $100 imported good to make it cost $125 is because the US provider cannot profitably sell for less than $125. The tariff doesn't magically fix the domestic provider's cost basis.
If the US provider was able to compete close to the $100 level (as they already have incentive to do!), there would be no complaint and no need for the tariff in the first place.
Well taking that 34% number as reference. You could have been brought from 0% margin to 34% with a penstroke. US manufacturers were ground down just to the level of being unprofitable for the last 4 decades, of course they are close to the break even level.